Excavator Swing Pinion Shaft 114-8225 Fit Caterpillar CAT311 311B 312 312B 313B E120B

Product Name: Pinion Shaft, Swing Prop Shaft, Drive Shaft Reference Part Number: 114-8225 Compatible Machine: Caterpillar Excavator CAT311 311B 312 312B 313B E120B… Description: The Swing Pinion Shaft for transmitting power from the swing motor to the swing gear which enables the rotation of the upper structure. It is used to rotate your equipment about the undercarriage by orbiting around the much larger bearing and ring gear.